Daily Archives: January 7, 2015

Galactic Views (149)


SPACE WATCH

Hubble’s High-Definition Panoramic View of the Andromeda Galaxy

NASA – The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy (M31) is the sharpest large composite image ever taken of our galactic next-door neighbor. Though the galaxy is over 2 million light-years away, the Hubble Space Telescope is powerful enough to resolve individual stars in a 61,000-light-year-long stretch of the galaxy’s pancake-shaped disk. It’s like photographing a beach and resolving individual grains of sand. And there are lots of stars in this sweeping view — over 100 million, with some of them in thousands of star clusters seen embedded in the disk.

This ambitious photographic cartography of the Andromeda galaxy represents a new benchmark for precision studies of large spiral galaxies that dominate the universe’s population of over 100 billion galaxies. Never before have astronomers been able to see individual stars inside an external spiral galaxy over such a large contiguous area. Most of the stars in the universe live inside such majestic star cities, and this is the first data that reveal populations of stars in context to their home galaxy.

The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency. NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore conducts Hubble science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy, Inc., in Washington.

> More: Hubble’s High-Definition Panoramic View of the Andromeda Galaxy

Image Credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (U. of Washington), the Panchromatic Hubble Andromeda Treasury (PHAT) team, and R. Gendler

The protesters who are trying to upend the ‘fantasy world’ of economics


By Jeff Guo – Keith Harrington, a community organizer and videographer, once worked as a climate change activist.

But after a few years he came to see that the real fight was elsewhere.

“The type of activism we were doing around climate was running into systemic challenges.”

“We couldn’t get the types of climate change policies we need without system change, without addressing questions in economics like growth and limits to growth.” more> http://tinyurl.com/kgxfr7h

Related>

How To Imagine The Future(s) Of Your Business

By Sandjar Kozubaev – There are many levels of detail you might think about:

  • World View
  • System View
  • Interaction View

Constructing a functional forward view of the future using these three levels of thinking provides you the mind-set with which to think holistically about the future.

It also helps you spot sensitivities, weaknesses, and dependencies with other alternatives, including predictions by others. There are also some traps to avoid. more> http://tinyurl.com/phlgq6n

When DNA gets sent to time-out

By Catherine Kolf – Picture the nucleus as a round room filled with double strands of DNA hanging in suspension as they are opened, closed, clipped, patched and read by proteins that come and go.

At the edge of the nucleus, just inside its flexible walls, the lamina meshwork provides shape and support.

But accumulating evidence from the past few years suggests that this meshwork is not just a structure, but is crucial to the cell’s ability to turn large segments of genes off in one fell swoop. It’s as though certain stretches of DNA feel a magnetic pull that keeps them clinging to the lamina in a state of “time-out,” inaccessible to the proteins that could be working on them. more> http://tinyurl.com/mo3dob5

Goldman Thinks JPMorgan Is Too Big, But Not Too Big to Fail

By Matt Levine – So the math is: New JPMorgan plus New Chase make about $3 billion less from their businesses, but spend about $3 billion less on capital, leading to an all-in net improvement in their combined financial prospects of zero dollars.

So that’s not really a rousing value add. Somehow, though, those zero dollars of extra income are worth an extra $10.23 per share, or over $38 billion, to New JPMorgan and New Chase.

That’s a lot of value placed on no new income! Where could it come from? more> http://tinyurl.com/n2q99yw